Harness for cross weaving



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J. J. KAUFMANN HARNESS FOR CROSS WEAVING Jan 26, 1937.

Filed Aug. 7, 1935 Patented Jan. 26, 1937 UNITED STATES T OFFICE HARNESS FOR. CROSS WEAVING Application August 7, 1935, Serial No. 35,046

10 Claims.

This invention relates to harness for cross weaving (sometimes called doup, leno, or gauze weaving), and it relates more particularly to the construction and arrangement of the standard or lifting heddles used in fiat steel cross weaving harness for raising the doup needle, thereby to cause the doup thread to be elevated on one side or the other of the ground thread, as required in the formation of the weave.

The principal object of the present invention is to provide a novel form of standard or lifting heddle for cross weaving harness which may be inexpensively constructed and in the use of which likelihood of fouling of the warp will be reduced to a minimum.

A further object of. the invention is to provide, in a two-strip standard or lifting heddle, improved means for uniting the two strips to each other to form the complete heddle.

A further object of the invention is to provide, in a two-strip standard or lifting heddle, a novel form of seat for engagement with the inner under margin ofv the eye portion of the doup needle.

A further object of the invention is to provide a novel form of standard or lifting heddle which is particularly adaptable for use in connection with the weaving of fabrics of high count, in that the heddles are suitable for closeinstallations in either jacquard or shaft harness.

The nature and characteristic features of. the

present invention will be more readily understood from the following description, taken in connection with theaccompanying drawing forming part hereof, in which:

5 Figure 1 is anelev-ational view of a set of loom harness elements comprising a pair of stand-.

ard or lifting heddles and a doup needle cooperating therewith, theheddles there shown embodying the main features-of the present invention;

Fig. 2 is an elevational view, enlarged, of the central portion of one of the standard or lifting heddles shown in Fig. 1;

Fig. 3 is a side elevation thereof;

Fig. 4 is a perspective view, enlarged, illustrating the central portion of one of the strips for forming the composite heddle shown in Figs. 1 to 7 of the drawing;

Fig. 5 is a similar view of the central portion of the other strip;

Fig. 6 is a view similar to Fig. 2, illustrating a. modified form of the invention;

Fig. 7 is a side elevation of the structure shown 55 in Fig. 6;

Fig. 8 is a view similar to Fig. 2, illustrating another modified form of the invention;

Fig. 9 is a side elevation of the structure shown in Fig. 8.

Fig. 10 is a vertical section, enlarged, taken approximately on the line I 0l ll of Fig. 1; and

Fig. 11 is a View similar to Fig. 2, illustrating another modified form of the invention.

It will, of course, be understood that the de-- scription and drawing herein contained are illus- 10 trative merely, and that various modifications and changes may be made in the structure disclosed without departing fromthe spirit of the invention. a

As the present invention relates more pa r- 5 ticularly to the standard or lifting heddle, the needle may be of any preferred form, such, for example, as that shown in my previous Letters Patent No. 1,037,151, being preferably punched or formed from a stripof. thin. flat metal. It 20 should be understood, however, that the particular formation of the doup needle forms no part of the present invention, and that the standard. or lifting heddles of the present invention are. applicable for use in the control of other forms 25 of doup needles.

The preferred form of the standard or lifting, heddle comprising the present invention is shown more particularly in Figs. 1 to 5, and 10 of the drawing. Each lifting heddle is made of 30 two strips I5 and it of thin flat metal, each of which is provided at its respective ends with eyes or mortises H, for attachment of the jacquard cords and lingoes, in the case of jacquard harness, or for mounting the same on the usual 35 heddle rods in the frames, in the case of shaft harness.

The present invention resides more particularly in the manner in which the two strips l5 and I6 of which each heddle is formed are united to 40 each other adjacent the point of engagement with the eye portion of the doup needle I4.

Referring now more particularly to Figs. 4. and 5 of the drawing, the central portion of one of the strips i5 is provided with a slot Hi. The other strip [6 is complementally slitted, as at I9, and the part 2|! of the slitted portion 1 9 is pressed out of the adjacent plane of the strip [6 a distance. of approximately double the thickness of the strip IS. The pressed out portion 26 of the strip I 6 50 is then inserted in the slot N3 of the strip I5 preferably extending through the same to the outside. The part 20, which is on the outside of the strip I5, is then manipulated to cause a portion there-. of. to overlap the side margins of the slot l8, as

at 2|, thus effectively keying the two strips l5 and I6 to each other (see Figs. 2 and 3).

The preferred manner of manipulating the strip l5 to cause the overlap above referred to is to swage the metal of the middle part 20 of the slitted portion of the strip l6, thereby to spread the same, although it will, of course, be understood that the overlap, for the purpose of keying the two strips to each other, may be obtained in various other ways, as will be readily apparent.

For example, instead of spreading the middle part 20 of the slitted portion i9 as shown in Figs. 2 and 6 of the drawing, this part 20 may, as shown in Fig. 11, be left unspread and the side shanks of the slotted portion of. the strip I5 may be pressed inwardly toward each other, as at 21, in back of the middle part 20 of the slitted portion of the strip l6.

At least one, but preferably both, of the strips 15 and I6 may be offset (see Figs. 2, 3, 4, 5, and 10) immediately above the slotted and slitted portions of the respective strips [5 and I6, thereby to provide a separation of said strips immediately above the point of interlock of the same, the upper end of the doup needle [4 being positioned in the space 22 provided by this separation of the strips l5 and It. This offset is preferably rather acute, whereby shoulders 23 are provided which the inner under margin of the eye portion of the doup needle I4 is adapted to engage. Each of the lifting heddles may also be offset as at 24, in the usual manner, to permit greater freedom of the doup needle when the same is actuated by the raising of one or the other of the standard or lifting heddles.

The form of the invention shown in Figs. 6 and 7 of the drawing is the same as that shown in Figs. 1, 2, and 3, with the exception that after the standard or lifting heddle is assembled and the two strips thereof are interlocked, the interlocked portion may be soldered as at 25, thereby affording greater security should this be deemed necessary.

The form of. the invention shown in Figs. 8 and 9 of the drawing differs somewhat from the forms shown in the other views, in that in this instance the pressed out slitted portion 20 extends but a distance corresponding to the thickness of the strip 15, so that when said pressed out portion 20 is inserted in the slot l8 in the other strip l5, the outer surface thereof will coincide with and lie in the same plane as that of the outer surface of the slotted strip l5.

After the two strips shown in Figs. 8 and 9 are assembled by the insertion of the slitted portion 20 of one strip in the slot 3 of the other, the two strips l5 and [6 are spot welded to each other as indicated at 26, in this instance eliminating the necessity of. spreading the part 20 of the slitted portion which extends through the slot I8 of the other strip, as in the other forms.

In each of the forms of the invention, when the pressed out middle part 20 of the slitted portion of the strip I6 is inserted in the slot 3 of the strip [5, the two strips will be properly positioned with respect to each other and held in such relationship until the two strips are permanently united to each other, either by the spreading of the pressed out portion 20, by the soldering, or by the spot welding, as hereinbefore set forth.

I claim:

1. A heddle for loom harness comprising two flat strips of metal, one of said strips having a pressed out part and the other of. said strips having a slot into which said pressed out part extends, and the strips being permanently secured to each other adjacent the point of engagement thereof.

2. A heddle for loom harness comprising two fiat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part ex tending into and through said slot and. extending laterally beyond the side margins of the slot to secure the strips to each other.

3. A standard or lifting heddle for cross weaving harness comprising two flat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending through said slot and extending laterally beyond the side margins of the slot to secure the strips to each other.

4. A standard or lifting heddle for cross weaving harness comprising two fiat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending through said slot and extending laterally beyond the side margins of the slot to secure the strips to each other, and at least one of said strips having its upper portion offset out of the plane of the lower portion immediately above the slitted and slotted portions thereby to provide a seat for a portion of a doup needle.

5. A heddle for loom harness comprising two flat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending into said slot, and said strips being soldered at the point of engagement of said slitted and slotted portions thereof.

6. A standard or lifting heddle for cross weaving harness comprising two fiat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending into said slot, and said strips being soldered at the point of engagement of said slitted and slotted portions thereof.

7. A standard or lifting heddle for cross weaving harness comprising two fiat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending into and through said slot and extending laterally beyond the side margins of the slot to secure the strips to each other, and said strips being soldered at the point of engagement of said slitted and slotted portions thereof.

8. A heddle for loom harness comprising two flat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending into said slot, and said strips being welded to each other at the point of engagement of said slitted and slotted portions thereof.

9. A standard or lifting heddle for cross Weaving harness comprising two flat strips of metal, one of said strips having a slot therein, and the other of said strips being slitted to provide a pressed out part engaging the slot of the other strip, said pressed out part extending into said slot, and said strips being welded to each other at the point of engagement of said slitted and slotted portions thereof.

10. A heddle for cross weaving harness comprising two flat strips of metal arranged face to face, at least one of said strips having its upper portion offset out of the plane of the lower portion to provide a seat for a portion of the doup needle, and, below said ofiset portion, one of said strips having a pressed out part and another of said strips having a slot into which said pressed out part extends, the strips being permanently secured to each other adjacent the point of engagement.

JOHN JACOB KAUFMANN. 

